package com.atchangsha.system.dao;

import com.atchangsha.system.entity.OrderEntity;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

/**
 * @author 卓越班项目第二组
 * @date 2022-04-22 00:49:59
 */
@Mapper
public interface OrderDao extends BaseMapper<OrderEntity> {

    String getYear();

    String getMaxYear();

    Double getSum(@Param("time") String time);
}
